Inhibition of human arginase I by substrate and product analogues.
Inhibition of human arginase I by substrate and product analogues.
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DOI:
10.1016/j.abb.2010.02.004
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发表时间:
2010-04-15
影响因子:
3.9
通讯作者:
Christianson, David W.
中科院分区:
文献类型:
--
作者:
Di Costanzo, Luigi;Ilies, Monica;Thorn, Katherine J.;Christianson, David W.
Human arginase I is a binuclear manganese metalloenzyme that catalyzes the hydrolysis of L-arginine to generate L-ornithine and urea. We demonstrate that N-hydroxy-L-arginine (NOHA) binds to this enzyme with Kd = 3.6 μM, and nor-N-hydroxy-L-arginine (nor-NOHA) binds with Kd = 517 nM (surface plasmon resonance) or Kd ≈ 50 nM (isothermal titration calorimetry). Crystals of human arginase I complexed with NOHA and nor-NOHA afford 2.04 Å and 1.55 Å resolution structures, respectively, which are significantly improved in comparison with previously determined structures of the corresponding complexes with rat arginase I. Higher resolution structures clarify the binding interactions of the inhibitors. Finally, the crystal structure of the complex with L-lysine (Kd = 13 μM) is reported at 1.90 Å resolution. This structure confirms the importance of hydrogen bond interactions with inhibitor α-carboxylate and α-amino groups as key specificity determinants of amino acid recognition in the arginase active site.
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DOI:
10.3109/13813459409003940
发表时间:
1994-09-01
期刊:
ARCHIVES INTERNATIONALES DE PHYSIOLOGIE DE BIOCHIMIE ET DE BIOPHYSIQUE
影响因子:
--
作者:
FUENTES, JM;CAMPO, ML;SOLER, G
通讯作者:
SOLER, G
影响因子:
3.5
作者:
HECKER, M;NEMATOLLAHI, H;RACKE, K
通讯作者:
RACKE, K
影响因子:
15
作者:
Baggio, R;Elbaum, D;Christianson, DW
通讯作者:
Christianson, DW
DOI:
10.1016/s0969-2126(99)80056-2
发表时间:
1999-04-15
期刊:
STRUCTURE WITH FOLDING & DESIGN
影响因子:
--
作者:
Bewley, MC;Jeffrey, PD;Baker, EN
通讯作者:
Baker, EN
影响因子:
15
作者:
Custot, J;Moali, C;Zimmermann, JL
通讯作者:
Zimmermann, JL